A frequent question is which refrigeration technology is the best for small-scale LNG production. Here, a broad range of aspects and guidelines for which is best suited for what type of application is covered.

Low natural gas prices are allowing multiple secondary
players in the US market to consider investments in small-scale
LNG plants. A frequent question is which refrigeration
technology is the best for liquefied natural gas (LNG)
production. At first glance, there are numerous process
alternatives on the market. However, when taking a closer look,
the choice simplifies to either single mixed-refrigerant (SMR)
or nitrogen (N2) expander technology. These
technologies dominate the small-scale plant capacity range
between 50,000 gallons per day (gpd) and 500,000 gpd of
LNG.

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